A cosmological pathway to testable leptogenesis
High Energy Physics - Phenomenology
2018-10-24 v1 Cosmology and Nongalactic Astrophysics
Abstract
Leptogenesis could have occurred at temperatures much lower than generally thought, if the cosmological history of the Universe underwent a period of accelerated expansion, as is predicted for example in a class of scalar-tensor theories of gravitation. We discuss how non-standard cosmologies can open new pathways for low scale leptogenesis. Within these scenarios, direct tests of leptogenesis could also provide information on the very early times Universe evolution, corresponding to temperatures larger than the TeV.
Keywords
Cite
@article{arxiv.1804.07676,
title = {A cosmological pathway to testable leptogenesis},
author = {Bhaskar Dutta and Chee Sheng Fong and Esteban Jimenez and Enrico Nardi},
journal= {arXiv preprint arXiv:1804.07676},
year = {2018}
}
Comments
21 pages, 4 figures